1421342424245 has 4 divisors (see below), whose sum is σ = 1705610909100. Its totient is φ = 1137073939392.

The previous prime is 1421342424241. The next prime is 1421342424259. The reversal of 1421342424245 is 5424242431241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 537407752561 + 883934671684 = 733081^2 + 940178^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421342424245 - 2² = 1421342424241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421342424199 and 1421342424208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421342424241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142134242420 + ... + 142134242429.

It is an arithmetic number, because the mean of its divisors is an integer number (426402727275).

Almost surely, 2^{1421342424245} is an apocalyptic number.

It is an amenable number.

1421342424245 is a deficient number, since it is larger than the sum of its proper divisors (284268484855).

1421342424245 is an equidigital number, since it uses as much as digits as its factorization.

1421342424245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284268484854.

The product of its digits is 245760, while the sum is 38.

Adding to 1421342424245 its reverse (5424242431241), we get a palindrome (6845584855486).

The spelling of 1421342424245 in words is "one trillion, four hundred twenty-one billion, three hundred forty-two million, four hundred twenty-four thousand, two hundred forty-five".